Symptoms??!

Brandi
I'm 7 dpo and feeling some symptoms, but it may just be in my head! 
I have had mild cramping and back pain around 2-3 dpo. 
Now I have slightly sore breasts, headaches, constantly peeing, and always hungry (like every two hours lol), hot flashes once or twice a day. 
Think it's anything? Thanks for the input!